// Copyright (C) 2014 The Regents of the University of California (Regents).
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//
//     * Redistributions in binary form must reproduce the above
//       copyright notice, this list of conditions and the following
//       disclaimer in the documentation and/or other materials provided
//       with the distribution.
//
//     * Neither the name of The Regents or University of California nor the
//       names of its contributors may be used to endorse or promote products
//       derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Please contact the author of this library if you have any questions.
// Author: Chris Sweeney (cmsweeney@cs.ucsb.edu)

#ifndef THEIA_SFM_VIEW_TRIPLET_H_
#define THEIA_SFM_VIEW_TRIPLET_H_

#include "theia/sfm/twoview_info.h"
#include "theia/sfm/types.h"

namespace theia {

// A triplet of views described by the pairwise transformations between each
// view pair.
struct ViewTriplet {
  // View ids of each camera. These should be in sorted order in order to
  // preserve the context of the two view infos (which describe the
  // transformation from smaller view id to larger view id).
  ViewId view_ids[3];

  // Two view infos connected each of the three views. "One" corresponds to
  // view_ids[0], etc.
  TwoViewInfo info_one_two;
  TwoViewInfo info_one_three;
  TwoViewInfo info_two_three;
};

}  // namespace theia

#endif  // THEIA_SFM_VIEW_TRIPLET_H_
